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In all the world, Hrishchenko (Hrishchenko ) is an extremely rare unknown gender first name. Much more frequently, Hrishchenko is the last name as well as the forename.
Гришченко, Грищенко, Гріщенко, Хришченко, Хрищенко, and Хріщенко
Maksym, Serhiy, and Serhii